Perhaps you should try some spelling variations:
ve triet » va trien
nhan luc » nang luc
su triet » su viet, su tien
van hanh » van thanh, ban hanh, van anh
hanh ve » hanh vi, hanh va, hanh kem
luc van » luoc van, luu van, duc van
su sach » vu sach
hieu vu » hieu va, hieu ve, hieu su
nang ma » tang ma, sang ma, nang cao
so sach » so sanh, bo sach, co sach
vu nhan » cu nhan, vu ngan, tu nhan
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, ly nang, v nang

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) y nang ma hoi. hieu vu nhan luc van hanh ve ((su triet) OR (ve triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) y nang ma hoi. hieu vu nhan luc van hanh ve ((su triet) or (ve triet))~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) y nang ma hoi. hieu vu nhan luc van hanh ve ((su triet) or (ve triet))*.